<button class="button">
  Button
</button>
<style>
/* From Uiverse.io by KhaledMatalkah - Tags: button, gradients */
.button {
  display: inline-block;
  padding: 15px 32px;
  font-size: 17px;
  font-weight: bold;
  color: rgb(0, 0, 0);
  background-color: rgb(255, 255, 255);
  border: none;
  border-radius: 50px;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.button:before,
.button:after {
  content: "";
  position: absolute;
  top: 0;
  width: 100%;
  height: 100%;
  border-radius: 50px;
  opacity: 0.3;
  pointer-events: none;
  transition: all 0.3s ease-in-out;
}

.button:before {
  left: -100%;
  background: linear-gradient(90deg, rgba(0, 136, 255, 0.8), rgba(255, 0, 170, 0.8), rgba(0, 136, 255, 0.8));
  z-index: -1;
}

.button:hover:before {
  left: 0;
}

.button:after {
  right: -100%;
  background: linear-gradient(270deg, rgba(0, 136, 255, 0.8), rgba(255, 0, 170, 0.8), rgba(0, 136, 255, 0.8));
  z-index: -1;
}

.button:hover:after {
  right: 0;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.button:active {
  transform: translateY(1px);
  box-shadow: none;
}

</style>
